Always-current free tiers and pricing for developer tools — compare email APIs, see what changed, and pick the best free tier. Every comparison is built from each vendor's own pricing page and carries the date it was last verified, so you never read a stale free-tier number. Pricing here was verified on 2026-07-05 and is refreshed within 30 days.
Free tiers get cut, prices climb, and the docs you bookmarked go stale. StackPulse keeps the numbers current so your comparison is never out of date.
SendGrid removed its permanent free tier in 2025, Mailgun raised its entry plan, and other tools quietly followed. If you picked a provider a year ago, the deal you signed up for may no longer exist. StackPulse re-checks each vendor's pricing page on a 30-day cycle and records what changed, so a comparison you read today reflects what you will actually pay.
We start with transactional email — SendGrid, Resend, Postmark, Mailgun, Amazon SES, Brevo and Mailtrap — comparing free tiers (from Postmark's 100/mo to Brevo's ~9,000/mo), entry prices (from $9 to $19.95/mo), dedicated-IP costs and Next.js fit. On paid plans, StackPulse watches the providers you depend on and alerts you the moment a free tier or price changes.
A sample of the pricing moves StackPulse has recorded. Full history is unlocked on Pro.